Technical Information; Overview - Biasi RIVA PLUS M90D.24S User Manual And Installation Instructions

4

TECHNICAL INFORMATION

4.1

Overview

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25 24 23 22
Fig. 4.1
11 C.h. return valve
12 Domestic cold water inlet valve
34 35
21 20 19 18 17 16
13 Gas inlet valve
14 D.h.w. outlet pipe
15 C.h. flow valve
16 D.h.w. temperature probe NTC
17 Main circuit drain valve
18 C.h. pressure relief valve
19 Pump
20 Pump vent plug
21 Automatic air purger valve
22 D.h.w. flow switch
23 Modulation gas valve
24 Primary circuit flow switch
25 C.h. temperature probe NTC
26 Three--- way diverter valve
27 Flame--- detecting electrode
28 Ignition electrodes
29 Burner
30 Combustion chamber
31 Primary heat exchanger
32 Air pressure switch
33 Air switch pressure test points
34 Fan
35 Safety thermostat
36 Modulation operator
37 Gas valve outlet pressure test point
38 Gas valve inlet pressure test point
39 D.h.w. heat exchanger
40 C.h. expansion tank
41 By --- pass valve
42 Venturi device
43 Domestic water circuit filter
44 D.h.w. flow limiter
45 Flue outlet pipe
46 Air intake pipe
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